RU64015U1 - MILK RUBBER OF THE MILKING MACHINE - Google Patents

Abstract

The utility model relates to the field of agriculture, in particular dairy farming. The nipple rubber (2) of the milking machine is aligned with the milk tube (3). On the milk tube (3), a thickening (4) was made in the tail. An elastic sleeve (6), for example, made of rubber, is mounted on the thickening. The sleeve (6) with an arbitrary thickness has an inner size smaller than the outer dimension of the bulge. The sleeve (6) provides local rigidity of the design of the milk tube (3) of the nipple rubber (2), which increases the reliability of the nipple rubber in compliance with sanitary and hygienic requirements and increases the service life. 1 ill.

Description

The invention relates to the field of agriculture, in particular, to nipple rubber milking machines used in machine milking of animals.

Known technical solution / 1 /, in which the nipple rubber and milk tube are made separately and when assembling the apparatus are connected together by a tight fit assembly. The disadvantage of this device is the presence of connection points in which a stagnant zone appears and favorable conditions are created for the development of microorganisms, which is extremely undesirable for the process of obtaining milk.

The disadvantage of this device is eliminated in a number of technical solutions, such as, for example, / 2 /, in which the teatcup rubber of the teatcup is made in conjunction with a milk tube stretched onto the manifold pipe.

A disadvantage of the known device is that when the milk tube bends when the device is in the working position (when the collector of the device is under the udder of the animal) and in the inactive position (when moving and storing the equipment), defects appear at the contact point of the edge of the collector pipe and the milk pipe (tears of the surface of the milk tube), which leads to the need to replace the nipple rubber and, thus, reduces the service life of the nipple rubber and increases production costs.

Closest to the proposed solution is the device / 3 /, adopted for the prototype, in which the nipple rubber is made in conjunction with a milk tube, in the tail of which, at the junction of the milk tube with the manifold pipe, there is a thickening. The location of the bulge on the milk tube is determined so that the collector pipe when installing the milk tube on it does not go beyond the zone of thickening.

The thickening is intended to increase the local rigidity of the design of the milk tube and should prevent it from bending in the area of the upper edge of the manifold pipe inserted into the tube.

A disadvantage of the known device is that the reliability of the milk tube is not high enough, since the external dimensions of the thickening are limited by the size of the lower opening of the milking cup through which the milk tube is drawn during assembly of the milking machine to install the nipple rubber in the milking cup.

After the milking process is over, the machine is carried, and after disconnecting the milking machine from the udder of the animal, the teatcups hang freely on milk tubes stretched over the manifold nozzles. In this case, the bending of the tubes in the region of the upper edge of the manifold pipe is maximum, the metal edge of the pipe abuts against the inner wall of the milk pipe, which leads to the appearance of defects in the form of cracks, ruptures of the nipple rubber material.

For a number of materials, for example silicone rubbers, the possible height of thickening is insufficient to prevent the milk tube from bending over the metal (the metal edge of the manifold pipe), therefore, most often the integrity of the milk tube is violated in this zone. This reduces the reliability and durability of the nipple rubber.

The purpose of the proposed technical solution is to increase the reliability and service life of the teat rubber of the milking machine.

This goal is achieved by the fact that in the nipple rubber of the milking machine, combined with a milk tube, on the tail of which there is a thickening, an elastic structural element is installed on the thickening of the milk tube, the inner size of which is smaller than the outer size of the thickening.

The goal is achieved, since the presence of an elastic structural element on the thickening eliminates the bending of the milk tube in the area of the upper edge of the manifold pipe inserted into the milk tube, which prevents tearing of the tube material and, thus, increases the reliability and service life.

The essence of the proposed device lies in the fact that on the milk tube of the nipple rubber, which has a thickening in the tail part, an elastic structural element of the required thickness is installed by tight fit on the thickening, which provides additional local

structural rigidity and prevents bending of the milk tube in the area of the upper edge of the manifold pipe.

In the proposed solution, the thickness of the elastic structural element is not limited by the dimensions of the elements of the milking machine (hole for pulling the milk tube when installing the nipple rubber in the milking cup) and it is selected depending on the elasticity and strength of the milk tube material, physico-mechanical properties of the material of the elastic structural element and considerations material saving. The lower the tear strength of the material from which the milk tube is made, the greater the thickness of the structural element when it is made of a material with similar physical and mechanical properties.

Currently, silicone materials are increasingly being used as the material for nipple rubber. Having a number of advantages compared to rubbers traditionally used for these purposes, silicone materials are often inferior to them in tear strength.

When using a teatcup made of silicone in the milking machine, the advantages of the proposed solution are especially significant, since the elastic structural element can be made of cheaper material, which does not have high requirements for compliance with the sanitary and hygienic standards for milking teat materials apparatuses.

The elastic structural element has an internal size less than the outer dimension of the thickening of the milk tube so that a tight fit is ensured when it is installed on the thickening. The length of the structural element is selected based on the need to overlap the area of the upper edge of the manifold pipe in the milk tube. A tight fit creates additional compression of the manifold pipe and prevents a decrease in vacuum in the system.

The structural element can be made, in particular, in the form of a sleeve made of rubber or other elastic material (for example, thermoplastic elastomer) with a different surface profile.

The proposed device is illustrated by the following image.

The figure (Fig), where:

1 - a milking glass;

2 - teatcup rubber;

3 - milk tube of nipple rubber;

4 - thickening of the milk tube;

5 - a pipe of a collector;

6 - elastic structural element.

The teatcup rubber 2 of the teatcup 1 is made combined with the milk tube 3, which has a bulge 4 in the tail portion, stretched over the manifold pipe 5. An elastic structural element 6 is mounted on the thickening 4 of the milk tube 3.

The proposed device operates as follows.

The teatcup rubber 2, which is combined with the milk tube 3, is fixed in the milking cup 1. The milk tube 3 is pulled through the lower opening of the milking cup 1. An elastic structural element 6 is installed on the thickening 4 of the tail portion of the milk tube 3. The tail portion of the milk tube 3 is pulled onto the nozzle collector 5 so that the upper edge of the pipe 5 is completely in the zone of thickening 4 with an elastic structural element 6 mounted on it.

Assembled milking cups with nipple rubber are mounted on the udder of the animal.

After milking, the teatcups are removed from the udder. The machine is carried, however, after disconnecting the milking machine from the udder of the animal, the teatcups hang freely under the weight of the milk tubes stretched on the manifold nozzles, while the milk tubes are bent under the weight of the teatcups.

In the proposed device, the elastic structural element increases the local structural rigidity and the milk tube is bent outside the zone of the upper edge of the collector, which preserves its integrity and increases the service life of the nipple rubber.

A positive effect of the presence of an elastic structural element in the device is also that due to the elastic properties of the elastic material of the structural element, an additional compression of the tip of the collector pipe is created, which prevents air leakage and a decrease in vacuum in the milking machine system during its operation.

In the prototype, with repeated bends of the milk tube near the tip of the collector inserted into the tube, the edge of the tip tears it. This leads to the fact that the number of milking cycles that the nipple rubber can withstand decreases sharply.

In the prototype, the thickening and the rest of the milk tube are made of the same material, and a sufficient increase in local stiffness is possible only with a significant increase in the external size of the thickening in comparison with the external size of the rest of the zone of the milk tube, which is impossible in the prototype, since the external size of the thickening is limited by the size of the lower hole milking glass.

An elastic structural element is made of any elastic material based on technological capabilities, ease of use, material saving and ease of assembly of the apparatus.

Information sources

1. US patent No. 5572947, op. 1996.11.12. "Milking machine". IPC A0JG 5/08, A01J 5/04, A01J 5/00.

2. RF patent No. 2260939, op. 09.09.27. "Nipple rubber, teatcup and milking unit." IPC7 A01J 5/08, A01J 5/04.

3. TU 38 605182-92 (prototype). Technical rubber details for a complete set of milking cups. Technical conditions

Claims (1)

Milking machine nipple rubber, combined with a milk tube, on the back of which there is a thickening, characterized in that an elastic structural element is installed on the milk tube thickening, the inner size of which is smaller than the outer size of the thickening.